Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/26613
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Nowak, Grzegorz | en_US |
dc.contributor.author | Palle, Enric | en_US |
dc.contributor.author | Gandolfi, Davide | en_US |
dc.contributor.author | Dai, Fei | en_US |
dc.contributor.author | LANZA, Antonino Francesco | en_US |
dc.contributor.author | Hirano, Teruyuki | en_US |
dc.contributor.author | Barragán, Oscar | en_US |
dc.contributor.author | Fukui, Akihiko | en_US |
dc.contributor.author | Bruntt, Hans | en_US |
dc.contributor.author | Endl, Michael | en_US |
dc.contributor.author | Cochran, William D. | en_US |
dc.contributor.author | Prada Moroni, Pier G. | en_US |
dc.contributor.author | Prieto-Arranz, Jorge | en_US |
dc.contributor.author | Kiilerich, Amanda | en_US |
dc.contributor.author | Nespral, David | en_US |
dc.contributor.author | Hatzes, Artie P. | en_US |
dc.contributor.author | Albrecht, Simon | en_US |
dc.contributor.author | Deeg, Hans | en_US |
dc.contributor.author | Winn, Joshua N. | en_US |
dc.contributor.author | Yu, Liang | en_US |
dc.contributor.author | Kuzuhara, Masayuki | en_US |
dc.contributor.author | Grziwa, Sascha | en_US |
dc.contributor.author | Smith, Alexis M. S. | en_US |
dc.contributor.author | Guenther, Eike W. | en_US |
dc.contributor.author | Van Eylen, Vincent | en_US |
dc.contributor.author | Csizmadia, Szilard | en_US |
dc.contributor.author | Fridlund, Malcolm | en_US |
dc.contributor.author | Cabrera, Juan | en_US |
dc.contributor.author | Eigmüller, Philipp | en_US |
dc.contributor.author | Erikson, Anders | en_US |
dc.contributor.author | Korth, Judith | en_US |
dc.contributor.author | Narita, Norio | en_US |
dc.contributor.author | Pätzold, Martin | en_US |
dc.contributor.author | Rauer, Heike | en_US |
dc.contributor.author | Ribas, Ignasi | en_US |
dc.date.accessioned | 2020-07-24T09:17:44Z | - |
dc.date.available | 2020-07-24T09:17:44Z | - |
dc.date.issued | 2017 | en_US |
dc.identifier.issn | 0004-6256 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/26613 | - |
dc.description.abstract | We report the discovery of EPIC 219388192b, a transiting brown dwarf in a 5.3 day orbit around a member star of Ruprecht 147, the oldest nearby open cluster association, which was photometrically monitored by K2 during its Campaign 7. We combine the K2 time-series data with ground-based adaptive optics imaging and high-resolution spectroscopy to rule out false positive scenarios and determine the main parameters of the system. EPIC 219388192b has a radius of {R}<SUB>{{b</SUB>}}=0.937+/- 0.032 R <SUB>Jup</SUB> and mass of {M}<SUB>{{b</SUB>}}=36.84+/- 0.97 M <SUB>Jup</SUB>, yielding a mean density of 59.6+/- 7.6 {{g}} {{cm}}<SUP>-3</SUP>. The host star is nearly a solar twin with mass {M}<SUB>\star </SUB>=1.01+/- 0.04 M <SUB>☉</SUB>, radius {R}<SUB>\star </SUB>=1.01+/- 0.03 R <SUB>☉</SUB>, effective temperature T <SUB>eff</SUB> = 5850 ± 85 K, and iron abundance [Fe/H] = 0.03 ± 0.08 dex. Its age, spectroscopic distance, and reddening are consistent with those of Ruprecht 147, corroborating its cluster membership. EPIC 219388192b is the first mature brown dwarf with precise determinations of mass, radius, and age, and serves as benchmark for evolutionary models in the substellar regime. | en_US |
dc.language.iso | eng | en_US |
dc.title | EPIC 219388192b—An Inhabitant of the Brown Dwarf Desert in the Ruprecht 147 Open Cluster | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.3847/1538-3881/aa5cb6 | en_US |
dc.identifier.scopus | 2-s2.0-85015213813 | en_US |
dc.identifier.isi | 000395948000003 | en_US |
dc.identifier.url | https://iopscience.iop.org/article/10.3847/1538-3881/aa5cb6 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 153 | en_US |
dc.relation.issue | 3 | en_US |
dc.relation.firstpage | 131 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.international | sì | en_US |
dc.contributor.country | ESP | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | THE ASTRONOMICAL JOURNAL | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2017AJ....153..131N | en_US |
dc.relation.ercsector | ERC sectors::Physical Sciences and Engineering::PE9 Universe sciences: astro-physics/chemistry/biology; solar systems; stellar, galactic and extragalactic astronomy, planetary systems, cosmology, space science, instrumentation | en_US |
dc.description.apc | no | en_US |
dc.description.oa | 1 – prodotto con file in versione Open Access (allegare il file al passo 5-Carica) | en_US |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
item.grantfulltext | open | - |
item.languageiso639-1 | en | - |
item.openairetype | Article | - |
item.cerifentitytype | Publications | - |
crisitem.journal.journalissn | 0004-6256 | - |
crisitem.journal.ance | E016224 | - |
crisitem.author.dept | O.A. Catania | - |
crisitem.author.orcid | 0000-0001-5928-7251 | - |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Nowak_2017_AJ_153_131.pdf | Pdf editoriale | 1.26 MB | Adobe PDF | View/Open |
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